There are generally three types of dimming power supplies that we commonly use in the market. They are triac dimming power supplies, 0/1-10V dimming power supplies, Dali dimming power supplies, etc. Let’s introduce their respective working principles and advantage.

(1)triac dimming power supply

Triac dimming is divided into constant voltage dimming and constant current dimming modes. triac dimming power supply supports leading and trailing edge dimming. Its working principle is to use the waveform of the input voltage to cut through the conduction angle to generate a tangential Output voltage waveform. Applying the tangential principle can reduce the effective value of the output voltage of thetriac dimmer, thereby reducing the power of the ordinary load (resistive load). The advantages oftriac dimming are high working efficiency and stable performance.

(2) 0/1-10V dimming power supply

0/1-10V dimming is divided into constant voltage dimming and constant current dimming modes. The power supply is designed with a new control chip. When a 0-10V dimmer is connected, the output current can be changed through a 0-10V voltage change, for example : When the 0-10V dimmer is modulated to 0V, the current drops to 0, and the brightness of the light is also off (with a light-on function). When the 0-10V dimmer is adjusted to the maximum 10V, the output current will also reach the power output 100%, the brightness will also be 100% (the output voltage is constant). 1-10V has no switch function, and the lamp cannot be adjusted to the lowest shutdown function. The 0/1-10V dimming power supply has the advantage of strong compatibility and can be compatible with various 0-10V dimmers and control systems on the market.

(3) Dali dimming power supply

Dali dimming power supply is divided into constant voltage dimming and constant current dimming modes. DALI dimming is a digital technology control, Dali abbreviation: digital addressable lighting interface, high conversion efficiency, strong stability; DALI is characterized by the system Terminal control can accurately control the lights point-to-point, DALI dimming each led light will have an independent address, which can communicate in two directions, and the system can identify the ID of each power supply; it can use a signal line to connect all the lights at will. The grouping of control can bring a lot of flexibility to the control. Combined with its sensors, timing control can bring significant energy-saving effects. As long as the system is supported, the DALI power supply can give the system feedback precise points of failure; the port is easier Connect with the Internet to realize remote monitoring.